Question

rory records the percentage of battery life remaining on his phone throughout a day. the battery life decreases as rory uses the phone, but will increase or stay at 100% while charging. the graph represents the percentage of battery life remaining after a certain number of hours. at which times could rorys phone have been plugged into the charger? select three options. 6 hours 9 hours 11 hours 14 hours 19 hours

Explanation:

Step1: Analyze graph behavior

When the phone is charging, the battery - life percentage either increases or stays at 100%. On the graph, these are the points where the slope changes from negative (battery - life decreasing while using the phone) to non - negative (battery - life increasing or staying constant).

Step2: Identify charging times

Looking at the graph, the times when the battery - life starts to increase or remains constant are at the start of an upward - sloping or horizontal section. These times are 9 hours, 14 hours, and 19 hours.

Answer:

B. 9 hours
D. 14 hours
E. 19 hours